Why Choose the Mersen F211973 DIII Screw Cap?
The Mersen F211973 is a high quality DIII Diazed fuse screw cap designed to securely retain compatible D fuse links within D-system fuse bases. Manufactured from durable porcelain, this screw cap provides reliable electrical insulation and dependable mechanical retention for low voltage electrical distribution systems.
Designed without a testing hole, the F211973 is ideal for installations where in-service testing access is not required. Its robust porcelain construction offers excellent thermal resistance and long service life, making it suitable for demanding industrial and commercial environments.
With a 63 A current rating, 500 V AC/DC voltage rating and compatibility with DIII fuse systems, the F211973 is an ideal replacement component for switchgear, distribution boards and machine control panels requiring dependable Diazed fuse protection.
Key Advantages
- Designed for DIII Diazed fuse systems.
- 63 A current rating for industrial fuse assemblies.
- 500 V AC/DC rated voltage for low voltage installations.
- Porcelain body provides excellent insulation and thermal resistance.
- Design without testing hole for applications where test access is unnecessary.
- Manufactured by Mersen for dependable long-term performance.
Key Features
- Mersen D-system screw cap series.
- Catalogue number: 00691.000000.
- DIII fuse size compatibility.
- 63 A rated current.
- 500 V AC and 500 V DC rated voltage.
- Porcelain insulating body.
- Design without testing hole.
- RoHS compliant construction.
Secure Installation for DIII Fuse Systems
D-system screw caps are designed to hold Diazed fuse links securely within compatible fuse bases. The Mersen F211973 provides reliable contact pressure while protecting the fuse assembly against mechanical stress during operation.
Its porcelain body delivers excellent electrical insulation and resistance to heat, making it suitable for industrial switchgear, commercial distribution equipment and machine control panels operating under demanding conditions.
Typical Applications
- Electrical distribution boards.
- Industrial switchgear assemblies.
- Commercial electrical installations.
- Machine control panels.
- Low voltage DIII fuse protection systems.
- Maintenance and refurbishment of compatible fuse bases.
